James H Miller Jr — Plant Summary
- EIA Plant ID
- 6002
- Capacity
- 2822 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- Jefferson, AL
- Operating Since
- 1978
- Generators
- 4
- Operator
- Alabama Power Co
- Parent Company
- Southern
- Annual Generation
- 19,017,972 MWh
- Capacity Factor
- 76.9%
- Balancing Authority
- Southern Company Services, Inc. - Trans
- ISO/RTO
- —
- NERC Region
- SERC
James H Miller Jr
OperatingSub. Coal
Ranked #1 of 1 Sub. Coal plants in AL#3 of 103 nationally
2822 MW Sub. Coal operating in Jefferson, AL — Southern Company Services, Inc. - Trans
EIAWD
2,822 MW
Nameplate Capacity
4
Generators
units
Conventional Steam Coal
Technology
1978
Operating Since
Location
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Alabama Power Co | PowerSouth Energy Cooperative | — |
| Owner(s) | Alabama Power Co, PowerSouth Energy Cooperative | Southern | Alabama Power |
| Status | Operating | — | — |
Ownership Chain
About
James H. Miller Jr. Electric Generating Plant, also known as Miller Steam Plant or Plant Miller, is a coal-fired electrical generation facility sitting on approximately 800 acres (320 ha) in West Jefferson, Alabama. It is owned by Alabama Power, a subsidiary of Southern Company.
Read more on WikipediaThe James H Miller Jr plant is a 2,822 MW coal-fired power plant located in Jefferson County, Alabama. It began operating in 1978 and is owned by Southern Company and operated by Alabama Power Co. The plant utilizes conventional steam coal technology with subbituminous coal (SUB) as its primary fuel source. It consists of four generators.
The plant is the largest in Alabama and ranks first out of 75 coal plants nationally. It operates within the Southern Company Services, Inc. - Trans balancing authority and the SERC NERC region. The latest annual generation data indicates an output of 19,017,972 MWh, achieving a capacity factor of 76.9%. Financial data indicates an installed cost of $1270.72 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Southern Company Services, Inc. - Trans
Grid Voltage
500 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
1.5M MWh
Latest Month
19.0M MWh
Annual Generation
76.9%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$1,776/kW
Installed Cost
$32.3/MWh
Operating Cost
ALABAMA POWER COMPANY
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Last updated 2026-03-26
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